| Guaynabo to Oswego (Illinois) | 2,074.61 mi (3,338.76 km) |
| Guaynabo to Oswego (New York) | 1,834.71 mi (2,952.68 km) |
| Guaynabo to Otsego (Minnesota) | 2,436.98 mi (3,921.94 km) |
| Guaynabo to Ottawa (Illinois) | 2,077.31 mi (3,343.11 km) |
| Guaynabo to Ottawa (Kansas) | 2,237.63 mi (3,601.12 km) |
| Guaynabo to Ottumwa (Iowa) | 2,205.18 mi (3,548.90 km) |
| Guaynabo to Overland (Missouri) | 2,021.55 mi (3,253.36 km) |
| Guaynabo to Overland Park (Kansas) | 2,221.17 mi (3,574.62 km) |
| Guaynabo to Overlea (Maryland) | 1,577.64 mi (2,538.97 km) |
| Guaynabo to Oviedo (Florida) | 1,187.97 mi (1,911.85 km) |
| Guaynabo to Owasso (Oklahoma) | 2,189.09 mi (3,523.00 km) |
| Guaynabo to Owatonna (Minnesota) | 2,369.95 mi (3,814.07 km) |
| Guaynabo to Owensboro (Kentucky) | 1,843.47 mi (2,966.77 km) |
| Guaynabo to Owings Mills (Maryland) | 1,587.09 mi (2,554.17 km) |
| Guaynabo to Owosso (Michigan) | 2,001.08 mi (3,220.43 km) |
